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6086 | Truth is the property of propositions that makes it possible to deduce facts [McGinn] |
Full Idea: Truth is a property of a proposition from which one can deduce the fact stated by the proposition. | |
From: Colin McGinn (Logical Properties [2000], Ch.5) | |
A reaction: This is McGinn's explanation of the disquotational account of truth ('p' is true iff p). The redundancy theorist would reply that you can deduce p from 'p' without mentioning truth, but it remains to ask why this deduction is possible. |
6087 | Without the disquotation device for truth, you could never form beliefs from others' testimony [McGinn] |
Full Idea: Imagine being in a community which had no concept of truth; ..you cannot disquote on p and hence form beliefs about the world as a result of testimony, since you lack the device of disquotation that is the essence of truth. | |
From: Colin McGinn (Logical Properties [2000], Ch.5) | |
A reaction: Whether his theory is right or not, the observation that testimony is the really crucial area where we must have a notion of truth is very good. How about 'truth is what turns propositions into beliefs'? |